Point Efficiency for Binary Systems

The composition of the vapor above any point of the dispersion is given by Eq. 12.1.8 

If the fundamental model described in Section 12.1.7 is used to characterize the mass transfer properties of the dispersion, the overall composition change in the vapor phase is given by Eq. 12.1.73. 

Estimate the Murphree point efficiency for the system toluene (l)-methylcyclohexane (2) considered in Example 12.1.1. 

The number of overall transfer units was estimated for this system using three different empirical methods. The results were as follows  

AIChE method Chan and Fair method Zuiderweg method 

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